Lockett convulsed violently during the execution and tried to lift his head after a doctor declared him unconscious. He later died of an apparent heart attack.

Obama said at a news conference Friday that he believes the death penalty is merited in some cases and that Lockett's crimes were heinous. But he says the penalty's application in the U.S. has problems, including racial bias and the eventual exoneration of some death row inmates.

He says he's asking Attorney General Eric Holder for an analysis of the penalty's application.

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Does dry skin and hair have you feeling down this holiday season? Chapped lips, cracked skin and brittle hair are certainly not huge problems when you look at the picture, but they are daily nuisances everyone can relate to.

Does dry skin and hair have you feeling down this holiday season? Chapped lips, cracked skin and brittle hair are certainly not huge problems when you look at the picture, but they are daily nuisances everyone can relate to.

San Diego leaders are exploring new ways to fund sidewalk repairs - and it could force homeowners to foot the bill. Broken sidewalks have led to millions of dollars in injury lawsuits and with the popularity of electric scooters, the number of injuries is expected to rise.

San Diego leaders are exploring new ways to fund sidewalk repairs - and it could force homeowners to foot the bill. Broken sidewalks have led to millions of dollars in injury lawsuits and with the popularity of electric scooters, the number of injuries is expected to rise.

Roger Kelton searches through the remains of his mother-in-law's home leveled by the Woolsey Fire, Tuesday, Nov. 13, 2018, in the southern California city of Agoura Hills. (AP Photo/Jae C. Hong)

More Malibu residents forced to flee the Woolsey Fire are back home Monday, in time to face a rain forecast for Wednesday that raises fears of possible mudslides as the estimated date for full containment of the fire was moved back to Thursday.

More Malibu residents forced to flee the Woolsey Fire are back home Monday, in time to face a rain forecast for Wednesday that raises fears of possible mudslides as the estimated date for full containment of the fire was moved back to Thursday.